LED print head grounding structure and image forming apparatus provided therewith

Abstract

An aspect of the present invention is an LED print head grounding structure including: an LED print head that emits exposure light; a conductive member that is adjacent to one end and another end of the LED print head; a conducting portion that puts the one end of the LED print head and one end of the conductive member into electric conduction; and a grounding portion that grounds the other end of the LED print head and another end of the conductive member.

1. An LED print head grounding structure comprising:
 an LED print head that emits exposure light; 
 a conductive member that is adjacent to one end and another end of the LED print head; 
 a conducting portion that puts the one end of the LED print head and one end of the conductive member into electric conduction; and a grounding portion that grounds the other end of the LED print head and another end of the conductive member, 
 wherein the conductive member is a support shaft piercing a photoreceptor to which the exposure light is emitted. 
 
     
     
       2. The LED print head grounding structure of  claim 1 , wherein one end side ground terminal is provided at the one end of the LED print head; and
 a plate spring member is provided at the conducting portion, the plate spring member abutting the one end side ground terminal to press the one end side ground terminal. 
 
     
     
       3. The LED print head grounding structure of  claim 2 , wherein the conducting portion is provided with:
 a conductive first helical compression spring that abuts the plate spring member; 
 a conductive second helical compression spring that abuts on the one end of the support shaft; and 
 a coupling member that couples the first helical compression spring and the second helical compression spring such that electrical conduction is established between the first helical compression spring and the second helical compression spring. 
 
     
     
       4. The LED print head grounding structure of  claim 2 , wherein the conducting portion is provided with a second plate spring member one end of which abuts the one end of the support shaft and another end of which abuts the plate spring member. 
     
     
       5. The LED print head grounding structure of  claim 4 , wherein the one end of the second plate spring member urges the one end of the support shaft in an axial direction thereof, and the other end of the second plate spring member urges the plate spring member. 
     
     
       6. The LED print head grounding structure of  claim 2 , wherein another end side ground terminal is provided at the other end of the LED print head; and
 the grounding portion is provided with: a grounding member that abuts the other end of the support shaft and is grounded; and 
 another end side plate spring member that abuts the grounding member and abuts the other end side ground terminal to press the other end side ground terminal. 
 
     
     
       7. An image forming apparatus comprising the LED print head grounding structure including:
 an LED print head that emits exposure light; 
 a conductive member that is adjacent to one end and another end of the LED print head; 
 a conducting portion that puts the one end of the LED print head and one end of the conductive member into electric conduction; and 
 a grounding portion that grounds the other end of the LED print head and another end of the conductive member, 
 wherein the conductive member is a support shaft piercing a photoreceptor to which the exposure light is emitted.